Query processor - Study guides, Class notes & Summaries

WGU D426 Objective Assessment (Latest 2023/ 2023 Update) Data Management Foundations | Questions and Verified Answers|100% Correct| Grade A Q: The storage manager translates Answer: the query processor instructions into low-lev- el file-system commands that modify or retrieve data Q: Database sizes range from Answer: from megabytes to many terabytes, Q: the storage manager uses what to quickly locate data Answer: indexes Q: Metadata is Answer: data about the...

WGU D426 V2 QUESTIONS AND ANSWERS WITH CERTIFIED SOLUTIONS The relationship (within the relation) that describes how the value of one attribute may be used to find the value of another attribute. Functional Dependency 3 MULTIPLE CHOICE OPTIONS An attribute that can be used to find the value of another attribute in the relation. Determinant 3 MULTIPLE CHOICE OPTIONS Value can be used to find the value of every other non-key attribute in the table. Unique and minimal. Candidate Key 3 MULTIPL...

WGU D426 Data Management Foundations Final Exam (Latest 2023/ 2023 Update) | Questions and Verified Answers|100% Correct| Grade A Q: Architecture Answer: Describes the internal components AND the relationships between components. Q: Query Processor Answer: Interprets queries, creates a plan to modify the database or retrieve the data, and returns query results to the application. Performs query optimization. Q: Query Optimization Answer: Ensures efficient instr...

Data Management Foundations|Complete Questions With A+ Graded Answers A database application is software that helps business users interact with database systems A database administrator is responsible for securing the database system against unauthorized users. A database administrator enforces procedures for user access and database system availability. Authorization meaning when it comes to database access Many database users should have limited access to spe...

WGU D426 Data Management Foundations Exam (Latest 2023/ 2023 Update) | Questions and Verified Answers|100% Correct| Grade A Q: The data about the data. Describes elements such as columns, names, and data type. Answer: Metadata Q: Ordered collection of elements in parentheses. Answer: Tuple Q: % of table rows selected by a query Answer: Hit Ration Q: Reads blocks directly, without accessing an index. Answer: Table Scan Q: Reads index blocks sequentially in...

Database Administrator - Responsible for securing the database system against unauthorized users. A database administrator enforces procedures for user access and database system availability. Authorization - Many database users should have limited access to specific tables, columns, or rows of a database. Database systems authorize individual users to access specific data. Rules - Database systems ensure data is consistent with structural and business rules. Query Processor - Int...

WGU D426 V2 LATEST EXAM WITH COMPLETE SOLUTIONS 2024/2025 UPDATE 100% SOLVED Components of a computer system and the relationships between components. Architecture 3 MULTIPLE CHOICE OPTIONS Interact directly with database users and administrators and send queries to the query processor. Includes Connectors & APIs, Workbench, and utility programs. Tools 3 MULTIPLE CHOICE OPTIONS Interprets queries. Compiles queries into low-level instructions for the storage engine. Creates a pla...

True & False The objective of SOL performance tuning on the client side is to generate an SOL query that returns the correct answer in the least amount of time, using the maximum amount of resources on the server side All database transactions must display at least the properties of Atomicity, consistency, convenience, and isolation Database recovery techniques are based on the isolation transaction property which indicate that the data used during execution of a transaction cannot...

WGU - D426: OBJECTIVE ASSESSMENT EXAM 2024 WITH 100% CORRECT ANSWERS Database Application - correct answer Software that helps business users interact with database systems. Database Administrator - correct answer Responsible for securing the database system against unauthorized users. A database administrator enforces procedures for user access and database system availability. Authorization - correct answer Many database users should have limited access to specific tables, columns, ...

WGU D426 V2 Actual Exam | 160 Questions and Answers 2024 Graded A. The relationship (within the relation) that describes how the value of one attribute may be used to find the value of another attribute. Functional Dependency An attribute that can be used to find the value of another attribute in the relation. Determinant Value can be used to find the value of every other non-key attribute in the table. Unique and minimal. Candidate Key Define & manage database structures DDL Ad...